Determination of the Enantiomeric Composition of γ-Lactones in Edible Oils by On-Line Coupled High Performance Liquid Chromatography and Gas Chromatography
A new method is proposed for the determination of the enantiomeric composition of γ-lactones in different vegetable edible oils (i.e., olive oil, almond oil, hazelnut oil, peanut oil, and walnut oil), and its potential for authenticity control is underlined for a limited number of samples. The metho...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2000-04, Vol.48 (4), p.1186-1190 |
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| container_title | Journal of agricultural and food chemistry |
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| creator | Ruiz del Castillo, María Luisa Herraiz, Marta Blanch, Gracia P |
| description | A new method is proposed for the determination of the enantiomeric composition of γ-lactones in different vegetable edible oils (i.e., olive oil, almond oil, hazelnut oil, peanut oil, and walnut oil), and its potential for authenticity control is underlined for a limited number of samples. The method is based on the direct injection (i.e., without requiring a sample pretreatment step) in on-line coupled reversed phase liquid chromatography to gas chromatography (RPLC-GC) using a chiral stationary phase in the GC-step. Different experimental values for both speed of sample introduction into GC and volume of the transferred fraction are considered to improve the recoveries obtained. Relative standard deviations lower than 10% and detection limits ranging from 0.06 to 0.22 mg/L were achieved for the investigated γ-lactones. Keywords: Enantiomeric composition; lactones; edible oils; on-line RPLC-GC |
| doi_str_mv | 10.1021/jf990655n |
| format | Article |
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The method is based on the direct injection (i.e., without requiring a sample pretreatment step) in on-line coupled reversed phase liquid chromatography to gas chromatography (RPLC-GC) using a chiral stationary phase in the GC-step. Different experimental values for both speed of sample introduction into GC and volume of the transferred fraction are considered to improve the recoveries obtained. Relative standard deviations lower than 10% and detection limits ranging from 0.06 to 0.22 mg/L were achieved for the investigated γ-lactones. 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Agric. Food Chem</addtitle><description>A new method is proposed for the determination of the enantiomeric composition of γ-lactones in different vegetable edible oils (i.e., olive oil, almond oil, hazelnut oil, peanut oil, and walnut oil), and its potential for authenticity control is underlined for a limited number of samples. The method is based on the direct injection (i.e., without requiring a sample pretreatment step) in on-line coupled reversed phase liquid chromatography to gas chromatography (RPLC-GC) using a chiral stationary phase in the GC-step. Different experimental values for both speed of sample introduction into GC and volume of the transferred fraction are considered to improve the recoveries obtained. Relative standard deviations lower than 10% and detection limits ranging from 0.06 to 0.22 mg/L were achieved for the investigated γ-lactones. Keywords: Enantiomeric composition; lactones; edible oils; on-line RPLC-GC</description><subject>Biological and medical sciences</subject><subject>Chromatography, High Pressure Liquid - methods</subject><subject>Fat industries</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gas Chromatography-Mass Spectrometry - methods</subject><subject>Lactones - analysis</subject><subject>Lactones - chemistry</subject><subject>Nuts - chemistry</subject><subject>Olive Oil</subject><subject>Online Systems</subject><subject>Peanut Oil</subject><subject>Plant Oils - chemistry</subject><subject>Stereoisomerism</subject><issn>0021-8561</issn><issn>1520-5118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpt0c1u1DAQB3ALgehSOPACyAdA6iHFH3HsHKvt0iJF3SIWIXGxnGTS9ZLYqZ1I7LvwFn0PnolUWQpCnCz7__NoNIPQS0pOKWH03a7Jc5IJ4R6hBRWMJIJS9RgtyBQmSmT0CD2LcUcIUUKSp-iIEikFl2SBfpzDAKGzzgzWO-wbPGwBr5xx072DYCu89F3vo_2d_7xLClMN3kHE1uFVbcsW8Nq2EZd7vHZJYR1Mn8a-hRpf2pstvobQ-NAZVwEu7O1oa7zcBt-Zwd8E02_32LgaX5j4z_Nz9KQxbYQXh_MYfX6_2iwvk2J98WF5ViSGSzUkZUZZrniapXWesYaDKmvGS5pzJQkrwVQ0UwwENCnwhlSKM24YlISpnBMj-DF6O9ftg78dIQ66s7GCtjUO_Bi1pERIztIJnsywCj7GAI3ug-1M2GtK9P0q9MMqJvvqUHQsO6j_kvPsJ_D6AEysTNuEaT42_nE8Vam4by6ZmY0DfH-ITfimM8ml0JvrT1p9vVIf-flGf5n8m9mbKuqdH4ObRvef_n4BNz6uCA</recordid><startdate>20000401</startdate><enddate>20000401</enddate><creator>Ruiz del Castillo, María Luisa</creator><creator>Herraiz, Marta</creator><creator>Blanch, Gracia P</creator><general>American Chemical Society</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20000401</creationdate><title>Determination of the Enantiomeric Composition of γ-Lactones in Edible Oils by On-Line Coupled High Performance Liquid Chromatography and Gas Chromatography</title><author>Ruiz del Castillo, María Luisa ; Herraiz, Marta ; Blanch, Gracia P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a378t-b612983464d962f3e8bd23b1938702beac1682e5ef4e3f0c8323a2eb028930a53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Biological and medical sciences</topic><topic>Chromatography, High Pressure Liquid - methods</topic><topic>Fat industries</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gas Chromatography-Mass Spectrometry - methods</topic><topic>Lactones - analysis</topic><topic>Lactones - chemistry</topic><topic>Nuts - chemistry</topic><topic>Olive Oil</topic><topic>Online Systems</topic><topic>Peanut Oil</topic><topic>Plant Oils - chemistry</topic><topic>Stereoisomerism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ruiz del Castillo, María Luisa</creatorcontrib><creatorcontrib>Herraiz, Marta</creatorcontrib><creatorcontrib>Blanch, Gracia P</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of agricultural and food chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ruiz del Castillo, María Luisa</au><au>Herraiz, Marta</au><au>Blanch, Gracia P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of the Enantiomeric Composition of γ-Lactones in Edible Oils by On-Line Coupled High Performance Liquid Chromatography and Gas Chromatography</atitle><jtitle>Journal of agricultural and food chemistry</jtitle><addtitle>J. Agric. Food Chem</addtitle><date>2000-04-01</date><risdate>2000</risdate><volume>48</volume><issue>4</issue><spage>1186</spage><epage>1190</epage><pages>1186-1190</pages><issn>0021-8561</issn><eissn>1520-5118</eissn><coden>JAFCAU</coden><abstract>A new method is proposed for the determination of the enantiomeric composition of γ-lactones in different vegetable edible oils (i.e., olive oil, almond oil, hazelnut oil, peanut oil, and walnut oil), and its potential for authenticity control is underlined for a limited number of samples. The method is based on the direct injection (i.e., without requiring a sample pretreatment step) in on-line coupled reversed phase liquid chromatography to gas chromatography (RPLC-GC) using a chiral stationary phase in the GC-step. Different experimental values for both speed of sample introduction into GC and volume of the transferred fraction are considered to improve the recoveries obtained. Relative standard deviations lower than 10% and detection limits ranging from 0.06 to 0.22 mg/L were achieved for the investigated γ-lactones. Keywords: Enantiomeric composition; lactones; edible oils; on-line RPLC-GC</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>10775370</pmid><doi>10.1021/jf990655n</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of agricultural and food chemistry, 2000-04, Vol.48 (4), p.1186-1190 |
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| source | ACS Publications; MEDLINE |
| subjects | Biological and medical sciences Chromatography, High Pressure Liquid - methods Fat industries Food industries Fundamental and applied biological sciences. Psychology Gas Chromatography-Mass Spectrometry - methods Lactones - analysis Lactones - chemistry Nuts - chemistry Olive Oil Online Systems Peanut Oil Plant Oils - chemistry Stereoisomerism |
| title | Determination of the Enantiomeric Composition of γ-Lactones in Edible Oils by On-Line Coupled High Performance Liquid Chromatography and Gas Chromatography |
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